{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320009",
    "entityType": "User",
    "nonce": "0x213badf9e004766453d5c964483164d7a6f90b28c6f4c93fc1e5d9ca7a74fd41",
    "signature": "0x701a31ecfbf05f9ed2d54c31ab136f6cda1575157a51697cf1ba01f84e3e78c338c3ef102900ab6f3b91c01da8d0b141d8f2b84685f534c2e7d9a9eba128d70d1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}